John Gill Commentary James 2:4

"Do ye not make distinctions among yourselves, and become judges with evil thoughts?" — James 2:4 (ASV)

Are you not then partial in yourselves
That is, guilty of such partiality as must appear to yourselves, and your own consciences must accuse you of; or do not you distinguish, or make a difference among yourselves, by such a conduct, towards the rich and the poor:

and are become judges of evil thoughts ;
or "are distinguishers by evil thoughts"; that is, make a distinction between the rich and the poor, by an evil way of thinking, that one is better than the other, and to be preferred before him.